User reminding method and apparatus, and terminal device

ABSTRACT

A user reminding method and apparatus, and a mobile terminal includes, obtaining, by a terminal device, a physical status of a user and a first blood pressure value of the user when a time difference between a current time and a preset reminding time is less than a first threshold; determining a first safety level based on the physical status and the first blood pressure value; and sending a first reminding signal in a manner corresponding to the first safety level.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a national stage application of International PatentApplication No. PCT/CN2015/076564, filed on Apr. 14, 2015, which isherein incorporated by reference in its entirety.

TECHNICAL FIELD

Embodiments of the present disclosure relate to the field of electronicproducts, and in particular, to a user reminding method and apparatus,and a terminal device.

BACKGROUND

Hypertension is one of the most common cardio-cerebral vasculardiseases, and an increase in a blood pressure is closely associated witha cardio-cerebral vascular event such as myocardial infarction orcerebral apoplexy, and is an important hidden danger that affects humanhealth.

When a person has a rest at night, a metabolism level is relatively low,and a blood pressure decreases accordingly. Once the person wakes up andgets up to perform an activity, the blood pressure rapidly increases.Duration from 6:00 to 10:00 in the morning is a peak period of a humanblood pressure in one day, and a cardio-cerebral vascular event isextremely easily induced in this period because of hypertension.

To smoothly begin one day of life, a user generally sets an alarm in aterminal device, and when the terminal device determines that a currenttime reaches an alarm time, the alarm rings to prompt the user to getup. The duration from 6:00 to 10:00 in the morning is not only a peakperiod of a human blood pressure in one day, but also a time periodduring which most persons need to get up. A sleeping user may feeluncomfortable because of an alarm ringtone that suddenly rings, and mayalso experience an instantaneous blood pressure increase. Therefore, ifa user suffering from hypertension is awakened by an alarm that suddenlyrings, a relatively severe event may be induced.

SUMMARY

In view of this, embodiments of the present disclosure provide a userreminding method and apparatus, and a terminal device, so as to avoid ahidden safety danger caused when a sleeping user whose blood pressureincreases is suddenly awakened.

According to a first aspect, a user reminding method includes, when atime difference between a current time and a preset reminding time isless than a first threshold, obtaining, by a terminal device, a physicalstatus of a user and a first blood pressure value of the user;determining a first safety level based on the physical status and thefirst blood pressure value; and sending a first reminding signal in amanner corresponding to the first safety level.

In a first possible implementation manner of the first aspect, thephysical status is a sleeping state; and the first reminding signal isan awakening signal.

With reference to the first possible implementation manner of the firstaspect, in a second possible implementation manner, after the awakeningsignal is sent in the manner corresponding to the first safety level,the method further includes, when the terminal device determines thatthe physical status of the user changes from the sleeping state to anawake state, obtaining a second blood pressure value of the user in theawake state; determining a second safety level based on a differencebetween the first blood pressure value and the second blood pressurevalue; and sending a second reminding signal in a manner correspondingto the second safety level.

With reference to the first possible implementation manner of the firstaspect, in a third possible implementation manner, after the awakeningsignal is sent in the manner corresponding to the first safety level,the method further includes, when the terminal device determines thatthe physical status of the user changes from the sleeping state to anawake state, obtaining a second blood pressure value of the user in theawake state; determining a second safety level based on a differencebetween the first blood pressure value and the second blood pressurevalue; determining a third safety level based on the second bloodpressure value; and selecting a higher safety level from the secondsafety level and the third safety level, and sending a third remindingsignal in a manner corresponding to the higher safety level.

In a fourth possible implementation manner of the first aspect, thephysical status is an awake state; and the first reminding signal is aprompt signal.

With reference to the second possible implementation manner of the firstaspect or the third possible implementation manner of the first aspect,in a fifth possible implementation manner, the second reminding signalor the third reminding signal is a prompt signal.

With reference to the first possible implementation manner of the firstaspect, the second possible implementation manner of the first aspect,or the third possible implementation manner of the first aspect, in asixth possible implementation manner, the awakening signal specificallyincludes normal ringing, soft ringing, or vibration.

With reference to the fourth possible implementation manner of the firstaspect or the fifth possible implementation manner of the first aspect,in a seventh possible implementation manner, the prompt signalspecifically includes a signal that prompts normal getting-up, a signalthat prompts timely medicine taking, a signal that prompts slowgetting-up, a signal that prompts still lying, or a signal that promptshelp seeking.

According to a second aspect, a user reminding apparatus includes aphysical status obtaining unit, a first blood pressure obtaining unit, afirst determining unit, and a first reminding unit, where the physicalstatus obtaining unit is configured to, when a time difference between acurrent time and a preset reminding time is less than a first threshold,obtain a physical status of a user; the first blood pressure obtainingunit is configured to, when the time difference between the current timeand the preset reminding time is less than the first threshold, obtain afirst blood pressure value of the user; the first determining unit isconfigured to determine a first safety level based on the physicalstatus obtained by the physical status obtaining unit and the firstblood pressure value obtained by the first blood pressure obtainingunit; and the first reminding unit is configured to send a firstreminding signal in a manner corresponding to the first safety leveldetermined by the first determining unit.

In a first possible implementation manner of the second aspect, thefirst reminding unit is specifically configured to, when the physicalstatus of the user obtained by the physical status obtaining unit is asleeping state, send an awakening signal in the manner corresponding tothe first safety level.

With reference to the first possible implementation manner of the secondaspect, in a second possible implementation manner, the physical statusdetermining unit is further configured to, after the first remindingunit sends the awakening signal, determine that the physical status ofthe user changes from the sleeping state to an awake state; theapparatus includes a second blood pressure obtaining unit configured toobtain a second blood pressure value of the user in the awake state; asecond determining unit configured to determine a second safety levelbased on a difference between the first blood pressure value obtained bythe first blood pressure obtaining unit and the second blood pressurevalue obtained by the second blood pressure obtaining unit; and secondreminding unit configured to send a second reminding signal in a mannercorresponding to the second safety level.

With reference to the first possible implementation manner of the secondaspect, in a third possible implementation manner, the apparatusincludes the physical status determining unit is further configured todetermine that the physical status of the user changes from the sleepingstate to an awake state; a second blood pressure obtaining unitconfigured to obtain a second blood pressure value of the user in theawake state; a second determining unit configured to determine a secondsafety level based on a difference between the first blood pressurevalue obtained by the first blood pressure obtaining unit and the secondblood pressure value obtained by the second blood pressure obtainingunit; a third determining unit configured to determine a third safetylevel based on the second blood pressure value obtained by the secondblood pressure obtaining unit; and a third reminding unit configured toselect a higher safety level from the second safety level and the thirdsafety level, and send a third reminding signal in a mannercorresponding to the higher safety level.

In a fourth possible implementation manner of the second aspect, thefirst reminding unit is specifically configured to, when the physicalstatus of the user obtained by the physical status obtaining unit is anawake state, send a prompt signal in the manner corresponding to thefirst safety level.

With reference to the second possible implementation manner of thesecond aspect or the third possible implementation manner of the secondaspect, in a fifth possible implementation manner, the second remindingsignal or the third reminding signal is a prompt signal.

With reference to the first possible implementation manner of the secondaspect, the second possible implementation manner of the second aspect,or the third possible implementation manner of the second aspect, in asixth possible implementation manner, the awakening signal specificallyincludes normal alarm ringing, soft ringing, or vibration.

With reference to the fourth possible implementation manner of thesecond aspect or the fifth possible implementation manner of the secondaspect, in a seventh possible implementation manner, the prompt signalspecifically includes a signal that prompts normal getting-up, a signalthat prompts timely medicine taking, a signal that prompts slowgetting-up, a signal that prompts still lying, or a signal that promptshelp seeking.

According to a third aspect, a terminal device includes a processor, astorage device, and a communications interface, where the storage deviceis configured to store computer executable program code; the processor,the storage device, and the communications interface communicate witheach other by using a bus; and the processor performs the followingoperations by reading the program code and data that are stored in thestorage device. When a time difference between a current time and apreset reminding time is less than a first threshold, obtaining aphysical status of a user and a first blood pressure value of the user;determining a first safety level based on the physical status and thefirst blood pressure value; and sending a first reminding signal in amanner corresponding to the first safety level.

In a first possible implementation manner of the third aspect, thephysical status is a sleeping state; and the first reminding signal isan awakening signal.

With reference to the first possible implementation manner of the thirdaspect, in a second possible implementation manner, after sending theawakening signal in the manner corresponding to the first safety level,the processor further performs the following operations. Determiningthat the physical status of the user changes from the sleeping state toan awake state; obtaining a second blood pressure value of the user inthe awake state; determining a second safety level based on a differencebetween the first blood pressure value and the second blood pressurevalue; and sending a second reminding signal in a manner correspondingto the second safety level.

With reference to the first possible implementation manner of the thirdaspect, in a third possible implementation manner, after sending theawakening signal in the manner corresponding to the first safety level,the processor further performs the following operations. Determiningthat the physical status of the user changes from the sleeping state toan awake state; obtaining a second blood pressure value of the user inthe awake state; determining a second safety level based on a differencebetween the first blood pressure value and the second blood pressurevalue; determining a third safety level based on the second bloodpressure value; and selecting a higher safety level from the secondsafety level and the third safety level, and sending a third remindingsignal in a manner corresponding to the higher safety level.

In a fourth possible implementation manner of the third aspect, thephysical status is an awake state; and the first reminding signal is aprompt signal.

With reference to the second possible implementation manner of the thirdaspect or the third possible implementation manner of the third aspect,in a fifth possible implementation manner, the second reminding signalor the third reminding signal is a prompt signal.

With reference to the first possible implementation manner of the thirdaspect, the second possible implementation manner of the third aspect,or the third possible implementation manner of the third aspect, in asixth possible implementation manner, the awakening signal includesnormal alarm ringing, soft ringing, or vibration.

With reference to the fourth possible implementation manner of the thirdaspect or the fifth possible implementation manner of the third aspect,in a seventh possible implementation manner, the prompt signal includesa signal that prompts normal getting-up, a signal that prompts timelymedicine taking, a signal that prompts slow getting-up, a signal thatprompts still lying, or a signal that prompts help seeking.

By means of the foregoing solutions, a safety level of a user isdetermined according to a physical status and a blood pressure value ofthe user, and a corresponding reminding manner is customized for theuser according to the safety level, thereby avoiding a health risk ofthe user caused because of a blood pressure change, reducing a bloodpressure burden on the user, and then improving safety andcomfortableness of ordinary users and hypertension patients who get upin the morning.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a flowchart of a user reminding method according to anembodiment of the present disclosure;

FIG. 2 is a flowchart of another user reminding method according to anembodiment of the present disclosure;

FIG. 3 is a schematic diagram of a user reminding apparatus according toan embodiment of the present disclosure;

FIG. 4 is a schematic diagram of another user reminding apparatusaccording to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of another user reminding apparatusaccording to an embodiment of the present disclosure; and

FIG. 6 is a schematic diagram of a terminal device according to anembodiment of the present disclosure.

DESCRIPTION OF EMBODIMENTS

The following clearly describes the technical solutions in theembodiments of the present disclosure with reference to the accompanyingdrawings in the embodiments of the present disclosure. The describedembodiments are merely some but not all of the embodiments of thepresent disclosure. All other embodiments obtained by a person ofordinary skill in the art based on the embodiments of the presentdisclosure without creative efforts shall fall within the protectionscope of the present disclosure.

FIG. 1 is a flowchart of a user reminding method according to anembodiment of the present disclosure. As shown in FIG. 1, the methodincludes the following steps.

Step 101: When a time difference between a current time and a presetreminding time is less than a first threshold, a terminal device obtainsa physical status of a user and a first blood pressure value of theuser.

In this embodiment of the present disclosure, a time amount of advance,that is, the first threshold is set on the terminal device. When theterminal device determines that the time difference between the currenttime and the preset reminding time is less than the first threshold, itmay be determined that an alarm is to ring, and then the terminal deviceobtains the physical status and the first blood pressure value of theuser.

The first threshold is a time length greater than or equal to a timeneeded to obtain the physical status and the first blood pressure valueof the user, and is, for example, 1 minute, 2 minutes, or another value.The first threshold may be set according to an actual requirement.Certainly, if the first threshold satisfies the foregoing condition, asmaller value of the first threshold indicates that the current time iscloser to the preset reminding time, and the physical status and thefirst blood pressure value that are obtained are greater reference.

In this embodiment of the present disclosure, for example, the physicalstatus of the user may be obtained by using an electrocardiosignalcollection apparatus or a pulse wave signal detection apparatus. Forexample, an electrocardiosignal of the user is detected by using anelectrocardiography sensor, and the physical status of the user isdetermined according to a heart rate and a heart rate variability; apulse wave period is measured by using an optical sensor, a pressuresensor, an acoustic sensor, a photoelectric sensor, an accelerationsensor, a displacement sensor, or the like, and the physical status isdetermined according to a change in the pulse wave period. Certainly, aslong as apparatuses can obtain the physical status of the user, theapparatuses may be used in this embodiment of the present disclosure,and are not enumerated again herein.

In this embodiment of the present disclosure, the physical statusincludes, for example, an awake state and a sleeping state. The sleepingstate may include, for example, a falling asleep period, a shallow sleepperiod, a deep sleep period, and a rapid eye movement sleep period, andsleep depths of the falling asleep period, the shallow sleep period, andthe deep sleep period are sequentially deepened.

In this embodiment of the present disclosure, for example, the firstblood pressure value of the user may be obtained according to results ofthe electrocardiosignal collection apparatus and the pulse wave signaldetection apparatus. For example, an electrocardiosignal of the user isobtained by using the electrocardiosignal collection apparatus, a pulsewave signal of the user is obtained by using the pulse wave signaldetection apparatus, a pulse wave transmission time is calculatedaccording to a time interval between a reference point on theelectrocardiosignal and a reference point on the pulse wave signal in asame heartbeat period. Because a pulse wave transmission speed isinversely proportional to the pulse wave transmission time, a bloodpressure value is calculated according to a relationship between anarterial blood pressure and a pulse wave transmission speed.

For a person of ordinary skill in the art, to calculate a blood pressurevalue by using an electrocardiosignal and a pulse wave signal is anexisting commonly known technology, and how to perform calculation toobtain a blood pressure value may be very easily learned by using anexisting reference document. Therefore, details are not described inembodiments of the specification.

Step 102: Determine a first safety level based on the physical statusand the first blood pressure value.

A safety level of the user, that is, the first safety level isdetermined according to the physical status and the first blood pressurevalue of the user that are obtained in step 101.

A person has different blood pressure values in the awake state and thesleeping state, the person has a relatively low blood pressure value inthe sleeping state, and once the person is awake, the blood pressureincreases. If the person already has a relatively high blood pressurevalue in the sleeping state, a risk of inducing a health event due tohypertension exists. Moreover, a deeper sleeping state of the personindicates a lower blood pressure, and if a blood pressure value of theperson in a relatively deep sleeping state already reaches ahypertension limit in the awake state, it indicates that a hypertensionrisk of the person is also higher. Therefore, in this embodiment of thepresent disclosure, a correspondence is set between different physicalstatuses and blood pressure values, and corresponding safety levels areset. When a physical status is a rapid eye movement sleep period,physiological characteristics of the person are unstable, and bloodpressure fluctuation is relatively large. Therefore, reference value ofa blood pressure value of the user in the rapid eye movement sleepperiod is unobvious, and a safety level is determined with reference toa blood pressure value obtained when the physical status is the awakestate.

Blood pressure values corresponding to different grades of the firstsafety level may be adjusted, for example, according to an actualrequirement of the user, or may be preset by a system.

For example, for a correspondence among a first safety level, a physicalstatus, and a blood pressure value in this embodiment of the presentdisclosure, refer to Table 1 (all blood pressure values in Table 1 arepreset by the system, and have a unit of millimeter of mercury (mmHg)).

TABLE 1 Physical status Awake state or rapid eye movement sleep periodFalling asleep period Shallow sleep period Deep sleep period Blood FirstSystolic Diastolic Systolic Diastolic Systolic Systolic SystolicDiastolic pressure safety blood blood blood blood blood blood bloodblood level level pressure pressure pressure pressure pressure pressurepressure pressure Normal 0  <140   <90  <135   <85  <130   <80  <100 <70 Mild 1 ≥140, <160  ≥90, <100 ≥135, <155 ≥85, <95  ≥130, <150 ≥80,<90  ≥120, <140 ≥70, <80 hypertension Moderate 2 ≥160, <180 ≥100, <110≥155, <175 ≥95, <105 ≥150, <170 ≥90, <100 ≥140, <160 ≥80, <90hypertension Severe 3 ≥180 ≥110 ≥175 ≥105 ≥170 ≥100 ≥160 ≥90hypertension

For ease of description, when each of a blood pressure value, adiastolic blood pressure, and a systolic blood pressure is mentionedbelow, a unit of mmHg is omitted.

For example, referring to Table 1, when the obtained physical status ofthe user is the shallow sleep period in the sleeping state, and asystolic blood pressure is 135 and a diastolic blood pressure is 86 inthe obtained first blood pressure value of the user, the foregoing tableis searched based on the physical status and the first blood pressurevalue, to determine that the first safety level of the user is 1, thatis, the user has mild hypertension.

Further, optionally, when a systolic blood pressure and a diastolicblood pressure belong to different blood pressure levels respectively, ahigher one of blood pressure levels of the systolic blood pressure andthe diastolic blood pressure is used as a standard for determining thefirst safety level.

For example, when the obtained physical status of the user is theshallow sleep period in the sleeping state, a systolic blood pressure is135, and a diastolic blood pressure is 95, because the diastolic bloodpressure corresponds to a higher blood pressure level, it is determined,according to that the diastolic blood pressure is 95, that the firstsafety level of the user is 2, that is, the user has moderatehypertension.

Step 103: Send a first reminding signal in a manner corresponding to thefirst safety level.

Users at different grades in the first safety level have differentexternal environment requirements. For a user who is already awake, ablood pressure status of the user and a behavior of the user after theuser gets up need to be learned. For a user who is sleeping, if the userhas no hypertension history, even if the user is suddenly awakened, ablood pressure of the user does not increase. However, for a user whohas a hypertension history or is in a hypertension state, if the user isawakened by an alarm ringtone that suddenly rings, a temporary disorderof nerves and endocrine is caused, and a blood pressure is furtherincreased. For example, if a sleeping user having moderate hypertensionsuddenly hears ringing of an alarm ringtone and is awakened, a bloodpressure value may increase, and reach a range of severe hypertension.Moreover, regardless of whether a hypertension emergency state or ahypertension crisis occurs in a hypertension patient, and regardless ofwhether an uncomfortable symptom occurs in the hypertension patient, aslong as a systolic blood pressure exceeds 180 mmHg or a diastolic bloodpressure exceeds 110 mmHg, antihypertensive therapy should be performedon the hypertension patient in time; otherwise, the life of thehypertension patient is probably endangered.

Therefore, in this embodiment of the present disclosure, the firstreminding signal is sent in the manner corresponding to the first safetylevel. In this way, users at different grades in the first safety levelreceive different reminding signals sent by the terminal device, therebyimproving comfortableness and safety of getting up in the morning.

In this embodiment of the present disclosure, a safety level of a useris determined according to a physical status and a blood pressure valueof the user, and a corresponding reminding manner is customized for theuser according to the safety level, thereby avoiding a health risk ofthe user caused because of a blood pressure change, reducing a bloodpressure burden on the user, and then improving safety andcomfortableness of ordinary users and hypertension patients who get upin the morning.

FIG. 2 is a schematic diagram of another user reminding method accordingto an embodiment of the present disclosure. On the basis of the userreminding method shown in FIG. 1, as shown in FIG. 2, the methodincludes the following steps.

Step 201: When a time difference between a current time and a presetreminding time is less than a first threshold, a terminal device obtainsa physical status of a user and a first blood pressure value of theuser; and when the physical status is a sleeping state, perform step202; or when the physical status is an awake state, perform step 208.

Step 202: Determine a first safety level based on the sleeping state andthe first blood pressure value, and send an awakening signal in a mannercorresponding to the first safety level.

It should be noted that, the awakening signal includes but is notlimited to normal alarm ringing, soft ringing, or vibration.

The awakening signal may be preset, or may be selected by the user. Forexample, a health risk caused by hypertension to a user having chronichypertension is larger than that caused by hypertension to a user havingno hypertension history, and therefore, a user may adjust a systolicblood pressure value and a diastolic blood pressure value in Table 1 ofthe first safety level, and select a corresponding awakening signal.

In this embodiment of the present disclosure, the awakening signal maybe preset, for example, in the following manners.

The first safety level is 0, and it indicates that a measured user has anormal blood pressure, and no hidden safety danger is caused because ofan abnormal blood pressure. Therefore, the awakening signal is a normalalarm ringtone, and the user is awakened from sleep by using the normalalarm ringtone.

The first safety level is 1, and it indicates that a measured user hasmild hypertension, and if the user is suddenly awakened by an alarm, theuser feels uncomfortable, and has a relatively low risk. Therefore, theawakening signal is soft ringing, and the user is awakened from sleep byusing soft and soothing music, thereby improving comfortableness of theawakened user.

The first safety level is 2, and it indicates that a measured user hasmoderate hypertension, and a blood pressure of the user may continue toincrease because an alarm suddenly rings; not only the user feelsuncomfortable, but also a health risk is induced. Therefore, theawakening signal is vibration, and the user is awakened from sleep bymeans of vibration, that is, an alarm ringtone is disabled, and a promptof an alarm is perceived by using body or skin touch, so as to awakenthe user, thereby avoiding a blood pressure increase caused because ofscare, and improving safety and comfortableness of the user.

The first safety level is 3, and it indicates that a measured user hassevere hypertension, and if the user is suddenly awakened by an alarmringtone, there is a great risk of instantaneously increasing a bloodpressure, and then endangering the life. Therefore, the terminal devicesends no awakening signal, that is, an alarm is disabled. For example,the terminal device may send an instruction to an intelligentresidential system, to adjust light in a bedroom, so as to naturallyawaken the user, or notify a family of the user, and the user may beawakened from sleep with the help of the family.

Step 203: When the terminal device determines that the physical statusof the user changes from the sleeping state to an awake state, obtain asecond blood pressure value of the user in the awake state.

In step 202, after the terminal device sends a reminding signal, theuser may be awakened. In this case, the terminal device may detect thatthe physical status of the user changes from the sleeping state to theawake state.

The second blood pressure value of the user in the awake state isobtained based on a manner the same as that of obtaining the first bloodpressure value in step 101 in Embodiment 1, and details are notdescribed herein again.

Step 204: Determine a second safety level based on a difference betweenthe first blood pressure value and the second blood pressure value.

A change between blood pressure values of a user having no hypertensionhistory in the sleeping state and the awake state is an approximateconstant such as 10 to 20 mmHg. If a change between blood pressurevalues of a user in the sleeping state and the awake state exceeds thisapproximate constant, it indicates that a blood pressure of the userfluctuates relatively largely, and a health risk is induced because ofhypertension.

The first blood pressure value is compared with the second bloodpressure value, a blood pressure difference between systolic bloodpressures of the first blood pressure value and the second bloodpressure value and a blood pressure difference between diastolic bloodpressures of the first blood pressure value and the second bloodpressure value are separately determined, and the second safety level isdetermined according to a larger one of the blood pressure differencebetween the systolic blood pressures and the blood pressure differencebetween the diastolic blood pressures.

Blood pressure differences at safety levels may be adjusted, forexample, according to an actual requirement of the user, or may bepreset by a system.

For example, for a correspondence between a second safety level and ablood pressure difference in this embodiment of the present disclosure,refer to Table 2 (all blood pressure differences in Table 2 are presetby the system).

TABLE 2 Second safety level Blood pressure difference mmHg 0 <20 1 ≥20,<40 2 ≥40, <60 3 ≥60

For example, a physical status of a user is a shallow sleep period in asleeping state, a systolic blood pressure of the obtained first bloodpressure value is 135, and a diastolic blood pressure of the obtainedfirst blood pressure value is 86. When it is determined that thephysical status of the user changes from the sleeping state to an awakestate, a systolic blood pressure of the obtained second blood pressurevalue is 145, and a diastolic blood pressure of the obtained secondblood pressure value is 107. Therefore, when the physical status of theuser changes from the sleeping state to the awake state, a differencebetween the systolic blood pressures is 10, and a difference between thediastolic blood pressures is 21. In this case, a larger value 21 of thedifference between the systolic blood pressures and the differencebetween the diastolic blood pressures is selected, and Table 2 issearched to determine that the second safety level of the blood pressureof the awakened user is 1.

Step 205: Send a second reminding signal in a manner corresponding tothe second safety level.

According to step 204, after the second safety level of the user isdetermined, the second reminding signal is sent in the mannercorresponding to the second safety level.

A higher second safety level indicates a larger blood pressure change,and a higher health risk caused by the blood pressure change. Therefore,when the second reminding signal is sent in a manner corresponding to adifferent second safety level, it can be ensured that the user does notsuddenly get up without being informed, which aggravates a bloodpressure burden, and causes a health risk.

Further, in this embodiment of the present disclosure, the secondreminding signal is a prompt signal.

It should be noted that, the prompt signal involved in this embodimentof the present disclosure includes but is not limited to a signal thatprompts normal getting-up, a signal that prompts timely medicine taking,a signal that prompts slow getting-up, a signal that prompts stilllying, or a signal that prompts help seeking.

The second reminding signal sent in the manner corresponding to thesecond safety level in Table 2 may be, for example, preset on thefollowing manner.

The second safety level is 0, and it indicates that a blood pressure ofa measured user fluctuates normally, and no hidden safety danger iscaused because of an abnormal blood pressure. Therefore, the promptsignal is, for example, a simple speech prompt such as “healthy” or “notbad today”, to remind the user that the user may normally get up, andcertainly, there may be no reminding.

The second safety level is 1, and it indicates that a blood pressure ofa measured user fluctuates slightly highly, there is a potential risk ofhypertension, and attention should be paid to a blood pressure change.Therefore, the prompt signal is, for example, a message pushed to amobile phone or a wearable device in a form of speech or text such as“blood pressure is slightly high, and please pay attention”, or “takemedicine in time”, to remind the user to get up normally and takemedicine in time, thereby improving a health index of the user.

Further, when it is determined that the second safety level is 1, whilesending the prompt signal, the terminal device or a wearable device mayfurther directly set a medicine taking time, that is, set a secondthreshold, thereby reminding the user to take medicine at a time afterthe second threshold starting from a current time, to control a bloodpressure, so as to prevent the user from delaying an illness status dueto forgetting to take medicine.

The second safety level is 2, and it indicates that a blood pressure ofa measured user fluctuates relatively largely, and direct getting-up maycause the body to feel uncomfortable. Therefore, the prompt signal is,for example, a message pushed to a mobile phone or a wearable device ina form of speech or text such as “blood pressure is relatively high, andplease get up slowly and take medicine on time”, “blood pressure isrelatively high, and please lie still and take medicine on time”, or“please not act violently and take medicine on time”, to remind the userto get up slowly, or to lie still in a bed for a period of time and thenget up slowly, or not to act violently after getting up, and takemedicine on time, or see a doctor at once if necessary, therebyimproving vigilance of the user, and paying attention to a bloodpressure change in real time.

Further, optionally, when it is determined that the second safety levelis 2, in a period when a user lies still according to reminding of theterminal device, the second blood pressure value of the user at the timeof waking up is detected continuously at a fixed interval, and when itis determined that a blood pressure difference between the second bloodpressure value and the first blood pressure value of the user decreasesand falls within a range corresponding to the second safety level being1, the user is reminded in a reminding manner of the second safety levelbeing 1, to get up and take medicine.

The second safety level is 3, and it indicates that blood pressurefluctuation of a measured user exceeds a limit, and direct getting-uphas a high health risk. Therefore, the prompt signal is, for example,reminding the user of “blood pressure is very high, and please liestill” by using speech, to remind the user not to get up, and send helpseeking information to a family or a doctor.

Further, optionally, when it is determined that the second safety levelis 3, in a period when a user lies still according to reminding of theterminal device, the second blood pressure value of the user at the timeof waking up is monitored continuously at a fixed interval, and when itis determined that a blood pressure difference between the second bloodpressure value and the first blood pressure value of the user decreasesto another second safety level, the user is reminded in a prompt mannerof the another second safety level.

Further, optionally, in this embodiment of the present disclosure, afterstep 201 to step 204, step 205 is not performed, but instead, step 206and step 207 are directly performed.

Step 206: Determine a third safety level based on the second bloodpressure value of the user in the awake state. The third safety levelmay be determined with reference to, for example, a medical standardblood pressure value. Refer to Table 3.

TABLE 3 Third Blood pressure safety level level Blood pressure rangemmHg Normal 0 systolic blood diastolic blood pressure < 140 pressure <90 Mild 1 140 ≤ systolic blood 90 ≤ diastolic blood hypertensionpressure < 159 pressure < 99 Moderate 2 160 ≤ systolic blood 100 ≤diastolic blood hypertension pressure < 179 pressure < 109 Severe 3systolic blood diastolic blood hypertension pressure ≥ 180 pressure ≥110

Step 207: Select a higher safety level from the second safety level andthe third safety level, and send a third reminding signal in a mannercorresponding to the higher safety level. After step 207, the embodimentprovided in the method ends.

For example, when the second safety level corresponding to the bloodpressure difference between the second blood pressure value and thefirst blood pressure value of the user is 2, and the third safety levelcorresponding to the second blood pressure value of the user is 1, thethird reminding signal is sent in a manner corresponding to the highersecond safety level being 2.

It should be noted that, in this embodiment of the present disclosure,the third reminding signal may be the same as the second remindingsignal, that is, the third reminding signal is also a prompt signal.

Step 208: Determine a first safety level based on the awake state andthe first blood pressure value, and send a prompt signal in a mannercorresponding to the first safety level.

The prompt signal may be the same as the second reminding signal or thethird reminding signal, and includes but is not limited to a signal thatprompts normal getting-up, a signal that prompts timely medicine taking,a signal that prompts slow getting-up, a signal that prompts stilllying, or a signal that prompts help seeking.

According to this embodiment of the present disclosure, a safety levelof a user is determined according to a physical status and a bloodpressure value of the user, a corresponding reminding manner iscustomized for the user according to the safety level, and a remindingmanner after awaking is further provided for a case in which thephysical status is a sleeping state, so as to ensure safety of the userwhen the user gets up in the morning, and reduce a health risk.

An embodiment of the present disclosure further provides a userreminding apparatus for implementing steps and methods in the foregoingmethod embodiments.

FIG. 3 is a schematic diagram of a user reminding apparatus according toan embodiment of the present disclosure. As shown in FIG. 3, theapparatus 300 includes a physical status obtaining unit 301, a firstblood pressure obtaining unit 302, a first determining unit 303, and afirst reminding unit 304.

The physical status obtaining unit 301 is configured to, when a timedifference between a current time and a preset reminding time is lessthan a first threshold, obtain a physical status of a user.

The first blood pressure obtaining unit 302 is configured to, when thetime difference between the current time and the preset reminding timeis less than the first threshold, obtain a first blood pressure value ofthe user.

The first determining unit 303 is configured to determine a first safetylevel based on the physical status obtained by the physical statusobtaining unit and the first blood pressure value obtained by the firstblood pressure obtaining unit.

The first reminding unit 304 is configured to send a first remindingsignal in a manner corresponding to the first safety level determined bythe first determining unit.

In this embodiment of the present disclosure, a safety level of a useris determined according to a physical status and a blood pressure valueof the user, and a corresponding reminding manner is customized for theuser according to the safety level, thereby avoiding a health risk ofthe user caused because of a blood pressure change, reducing a bloodpressure burden on the user, and then improving safety andcomfortableness of ordinary users and hypertension patients who get upin the morning.

The user reminding apparatus provided in this embodiment of the presentdisclosure is configured to implement the methods shown in theembodiments shown in FIG. 1 and FIG. 2. For details of an operatingprinciple and an operating process of the user reminding apparatus and atechnical effect generated by the user reminding apparatus, refer to theembodiments shown in FIG. 1 and FIG. 2, and details are not describedherein again.

FIG. 4 is a schematic diagram of another user reminding apparatusaccording to an embodiment of the present disclosure. On the basis ofEmbodiment 3 shown in FIG. 3, as shown in FIG. 4, the apparatus 400includes a physical status obtaining unit 401 configured to, when a timedifference between a current time and a preset reminding time is lessthan a first threshold, obtain that a physical status of a user is asleeping state; a first reminding unit 402 configured to send anawakening signal in a manner corresponding to the first safety leveldetermined by the first determining unit 303, where the physical statusdetermining unit 401 is further configured to, after the first remindingunit 402 sends the awakening signal, determine that the physical statusof the user changes from the sleeping state to an awake state; a secondblood pressure obtaining unit 403 configured to obtain a second bloodpressure value of the user in the awake state; a second determining unit404 configured to determine a second safety level based on a differencebetween the first blood pressure value and the second blood pressurevalue; and a second reminding unit 405 configured to send a secondreminding signal in a manner corresponding to the second safety leveldetermined by the second determining unit 404.

It should be noted that, the second reminding signal may be, forexample, a prompt signal, and the prompt signal includes but is notlimited to a signal that prompts normal getting-up, a signal thatprompts timely medicine taking, a signal that prompts slow getting-up, asignal that prompts still lying, or a signal that prompts help seeking.

Further, optionally, in a case in which the foregoing units 401 to 404in this embodiment of the present disclosure are included, the secondreminding unit 405 may not be included, but instead, a third determiningunit 406 and a third reminding unit 407 are included.

The third determining unit 406 is configured to determine a third safetylevel based on the second blood pressure value obtained by the secondblood pressure obtaining unit 403.

The third reminding unit 407 is configured to select a higher safetylevel from the second safety level and the third safety level, and senda third reminding signal in a manner corresponding to the higher safetylevel.

It should be noted that, the third reminding signal may be the same asthe second reminding signal, and is, for example, a prompt signal.

In this embodiment of the present disclosure, it is determined,according to a blood pressure difference between a first blood pressurevalue of a user in a sleeping state and a second blood pressure value ofthe user whose status changes from the sleeping state to an awake state,whether the user has a health risk caused by hypertension, and the useris reminded, by using different reminders, of sitting-up manners thatthe user may use, thereby further ensuring safety of the user getting upin the morning, and reducing a health risk.

The user reminding apparatus provided in this embodiment of the presentdisclosure is configured to implement the methods shown in theembodiments shown in FIG. 1 and FIG. 2. For details of an operatingprinciple and an operating process of the user reminding apparatus and atechnical effect generated by the user reminding apparatus, refer to theembodiments shown in FIG. 1 and FIG. 2, and details are not describedherein again.

FIG. 5 shows another user reminding apparatus according to an embodimentof the present disclosure. On the basis of the embodiment shown in FIG.3, as shown in FIG. 5, the apparatus includes a physical statusobtaining unit 501 configured to, when a time difference between acurrent time and a preset reminding time is less than a first threshold,obtain that a physical status of a user is an awake state; and a firstreminding unit 502 configured to, when the physical status of the userobtained by the physical status obtaining unit is an awake state, send aprompt signal in the manner corresponding to the first safety level.

In this embodiment of the present disclosure, a first blood pressurevalue is obtained when a physical status of a user is an awake state, afirst safety level is determined according to the awake state and thefirst blood pressure value, and a signal reminding the user of asitting-up manner is sent in a manner corresponding to the first safetylevel, thereby ensuring safety of the user getting up in the morning,and reducing a health risk.

The user reminding apparatus provided in this embodiment of the presentdisclosure is configured to implement the methods shown in theembodiments shown in FIG. 1 and FIG. 2. For details of an operatingprinciple and an operating process of the user reminding apparatus and atechnical effect generated by the user reminding apparatus, refer to theembodiments shown in FIG. 1 and FIG. 2, and details are not describedherein again.

FIG. 6 is a schematic diagram of a terminal device according to anembodiment of the present disclosure.

The terminal device 600 in this embodiment of the present disclosureincludes a processor 601 coupled to one or more storage devices, astorage device 602, a communications interface 603, and a bus 604.

The processor 601 is a control center of the terminal device 600 andprovides sequencing and processing facilities to execute an instruction,perform an interrupt operation, and provide a timing function and manyother functions. Optionally, the processor 601 includes one or morecentral processing units (CPU). Optionally, the terminal device 600includes more than one processor. The processor 601 may be a single-core(single-CPU) processor or a multi-core (multi-CPU) processor. The term“processor” used in this specification refers to one or more devices,circuits, and/or processing kernels configured to process data such as acomputer program instruction.

The storage device 602 may include a storage medium and a memory unit.The storage medium may be read-only such as a read-only memory (ROM), orbe readable/writable such as a hard disk or flash memory. The memoryunit may be a random access memory (RAM). The memory unit may bephysically integrated together with the processor 601 or be integratedinto the processor 601 or be constructed in one or more independentunits.

The processor 601 may execute program code stored in the storage device602. Optionally, the program code stored in the storage medium of thestorage device 602 may be replicated into the memory unit, so as to beexecuted by the processor. The processor may execute at least one kernel(for example, a kernel in an operating system sold with a trademark suchas LINUX®, UNIX®, WINDOWS®, ANDROID®, or IOS®), and it is well knownthat the kernel is configured to control operations of the terminaldevice 600 by controlling execution of other programs or processes,controlling communication with a peripheral, and controlling use ofresources of a computing device.

The terminal device 600 further includes the communications interface603 configured to communicate with another device or system directly orby using an external network.

The foregoing elements of the terminal device 600 may be coupled to eachother by using any one of or any combination of the bus 604 such as adata bus, an address bus, a control bus, an extended bus or a local bus.

Optionally, the terminal device 600 further includes an output deviceand an input device (not shown). The output device is coupled to theprocessor 601, and can display information in one or more manners. Anexample of the output device is a visual display device, for example, aliquid crystal display (LCD), a light emitting diode (LED) display, acathode-ray tube (CRT), or a projector. The input device is also coupledto the processor 601, and can receive a user input of the terminaldevice 600 in one or more manners. An example of the input deviceincludes a mouse, a keyboard, a touchscreen device, a sensing device, orthe like.

The processor 601 reads the program code and data that are stored in thestorage device 602, where the program code includes an instruction, andwhen executing the instruction, the processor performs the followingoperations. When a time difference between a current time and a presetreminding time is less than a first threshold, obtaining a physicalstatus of a user and a first blood pressure value of the user;determining a first safety level based on the physical status and thefirst blood pressure value; and sending a first reminding signal in amanner corresponding to the first safety level.

It should be noted that, when the terminal device 600 of this embodimentof the present disclosure is a wearable device, the wearable deviceincludes an electrocardiosignal collection apparatus and a pulse wavesignal collection apparatus, and the processor 601 controls theelectrocardiosignal collection apparatus and the pulse wave signalcollection apparatus to obtain an electrocardiosignal and a pulse wavesignal, obtains the physical status according to the electrocardiosignaland/or the pulse wave signal, and obtains the first blood pressure valueof the user according to the electrocardiosignal and the pulse wavesignal. The processor 601 determines the first safety level based on thephysical status and the first blood pressure value that are obtained,and sends the first reminding signal in the manner corresponding to thefirst safety level.

Optionally, when the terminal device 600 of this embodiment of thepresent disclosure is a general-purpose computing device or anapplication-specific computing device such as a desktop computer, anotebook computer, a network server, a personal digital assistant (PDA),a mobile phone, a tablet computer, a wireless terminal device, atelecommunications device, an embedded system or any other device thathas a structure similar to that shown in FIG. 6, the processor 601 ofthe terminal device 600 needs to obtain a physical status and a bloodpressure value of a user by using a wearable device including anelectrocardiosignal collection apparatus and a pulse wave signalcollection apparatus. That is, the processor 601 controls theelectrocardiosignal collection apparatus and pulse wave signalcollection apparatus in the wearable device to perform the operation ofobtaining the physical status and the blood pressure value, and receivesobtained data returned by the wearable device. The processor 601determines the first safety level based on the physical status and thefirst blood pressure value that are obtained, and sends the firstreminding signal in the manner corresponding to the first safety level.

Further, when the physical status is an awake state, the processor 601sends a prompt signal in the manner corresponding to the first safetylevel.

It should be noted that, in this embodiment of the present disclosure,the prompt signal includes but is not limited to a signal that promptsnormal getting-up, a signal that prompts timely medicine taking, asignal that prompts slow getting-up, a signal that prompts still lying,or a signal that prompts help seeking.

Further, when the physical status is a sleeping state, the processor 601sends an awakening signal in the manner corresponding to the firstsafety level.

It should be noted that, in this embodiment of the present disclosure,the awakening signal includes but is not limited to normal alarmringing, soft ringing, or vibration.

Further, after sending the awakening signal in the manner correspondingto the first safety level, the processor 601 further performs thefollowing operations. Determining that the physical status of the userchanges from the sleeping state to an awake state; obtaining a secondblood pressure value of the user in the awake state; determining asecond safety level based on a difference between the first bloodpressure value and the second blood pressure value; and sending a secondreminding signal in a manner corresponding to the second safety level.

Further, after sending the awakening signal in the manner correspondingto the first safety level, the processor 601 further performs thefollowing operations. Determining that the physical status of the userchanges from the sleeping state to an awake state; obtaining a secondblood pressure value of the user in the awake state; determining asecond safety level based on a difference between the first bloodpressure value and the second blood pressure value; determining a thirdsafety level based on the second blood pressure value; and selecting ahigher safety level from the second safety level and the third safetylevel, and sending a third reminding signal in a manner corresponding tothe higher safety level.

It should be noted that, in this embodiment of the present disclosure,the second reminding signal or the third reminding signal is a promptsignal.

In this embodiment of the present disclosure, a safety level of a useris determined according to a physical status and a blood pressure valueof the user, and a corresponding reminding manner is customized for theuser according to the safety level, thereby avoiding a health risk ofthe user caused because of a blood pressure change, reducing a bloodpressure burden on the user, and then improving safety andcomfortableness of ordinary users and hypertension patients who get upin the morning.

The terminal device provided in this embodiment of the presentdisclosure is configured to implement the methods shown in theembodiments shown in FIG. 1 and FIG. 2. For details of an operatingprinciple and an operating process of the terminal device and atechnical effect generated by the terminal device, refer to theembodiments shown in FIG. 1 and FIG. 2, and details are not describedherein again.

With descriptions of the foregoing embodiments, a person skilled in theart may clearly understand that the present disclosure may beimplemented by hardware, firmware or a combination thereof. When thepresent disclosure is implemented by software, the foregoing functionsmay be stored in a computer-readable medium or transmitted as one ormore instructions or code in the computer-readable medium. Thecomputer-readable medium includes a computer storage medium and acommunications medium, where the communications medium includes anymedium that enables a computer program to be transmitted from one placeto another. The storage medium may be any available medium accessible toa computer. The following provides an example but does not impose alimitation. The computer-readable medium may include a RAM, a ROM, anelectrically erasable programmable read only memory (EEPROM), a CompactDisc read-only-memory (CD-ROM), or another optical disc storage or adisk storage medium, or another magnetic storage device, or any othermedium that can carry or store expected program code in a form of aninstruction or a data structure and can be accessed by a computer. Inaddition, any connection may be appropriately defined as acomputer-readable medium. For example, if software is transmitted from awebsite, a server or another remote source by using a coaxial cable, anoptical fiber/cable, a twisted pair, a digital subscriber line (DSL) orwireless technologies such as infrared ray, radio and microwave areincluded in fixation of a medium to which they belong. For example, adisk and disc used by the present disclosure includes a compact disc(CD), a laser disc, an optical disc, a digital versatile disc (DVD), afloppy disk and a Blu-ray disc, where the disk generally copies data bya magnetic means, and the disc copies data optically by a laser means.The foregoing combination should also be included in the protectionscope of the computer-readable medium.

In summary, what is described above is merely exemplary embodiments ofthe technical solutions of the present disclosure, but is not intendedto limit the protection scope of the present disclosure. Anymodification, equivalent replacement, or improvement made withoutdeparting from the spirit and principle of the present disclosure shallfall within the protection scope of the present disclosure.

What is claimed is:
 1. A user reminding method, comprising: obtaining,by a terminal device, a physical status of a user and a first bloodpressure value of the user when a time difference between a current timeand a preset reminding time is less than a first threshold time;determining, by the terminal device, a first safety level based on thephysical status of the user and the first blood pressure value of theuser; and sending, by the terminal device, a first reminding signal in amanner corresponding to the first safety level.
 2. The method of claim1, wherein the physical status is a sleeping state, and the firstreminding signal being an awakening signal.
 3. The method of claim 2,further comprising: obtaining a second blood pressure value of the userin an awake state when the physical status of the user changes from thesleeping state to the awake state; determining a second safety levelbased on a difference between the first blood pressure value and thesecond blood pressure value; and sending a second reminding signal in amanner corresponding to the second safety level.
 4. The method of claim2, further comprising: obtaining a second blood pressure value of theuser in an awake state when the physical status of the user changes fromthe sleeping state to the awake state; determining a second safety levelbased on a difference between the first blood pressure value and thesecond blood pressure value; determining a third safety level based onthe second blood pressure value; selecting a higher safety level fromthe second safety level and the third safety level; and sending a thirdreminding signal in a manner corresponding to the higher safety level.5. The method of claim 1, wherein the physical status is an awake state,and the first reminding signal being a prompt signal.
 6. The method ofclaim 3, wherein either the second reminding signal or a third remindingsignal is a prompt signal.
 7. The method of claim 6, wherein theawakening signal comprises normal ringing, soft ringing, or vibration,and the prompt signal comprising either a first signal to indicate tothe user to get-up normally, a second signal to indicate a time to theuser to take medicine, a third signal to indicate to the user to get-upslowly, a fourth signal to indicate to the user to lay still, or afourth signal to indicate to the to can seek help.
 8. A terminal device,comprising: a memory storing instructions; and a processor coupled tothe memory, the instructions causing the processor to be configured to:obtain a physical status of a user and a first blood pressure value ofthe user when a time difference between a current time and a presetreminding time is less than a first threshold; determine a first safetylevel based on the physical status of the user and the first bloodpressure value of the user; and send a first reminding signal in amanner corresponding to the first safety level.
 9. The terminal deviceof claim 8, wherein the physical status is a sleeping state, and thefirst reminding signal being an awakening signal.
 10. The terminaldevice of claim 9, wherein the instructions further cause the processorto be configured to: determine that the physical status of the userchanges from the sleeping state to an awake state; obtain a second bloodpressure value of the user in the awake state; determine a second safetylevel based on a difference between the first blood pressure value andthe second blood pressure value; and send a second reminding signal in amanner corresponding to the second safety level.
 11. The terminal deviceof claim 9, wherein the instructions further cause the processor to beconfigured to: determine that the physical status of the user changesfrom the sleeping state to an awake state; obtain a second bloodpressure value of the user in the awake state; determine a second safetylevel based on a difference between the first blood pressure value andthe second blood pressure value; determine a third safety level based onthe second blood pressure value; select a higher safety level from thesecond safety level and the third safety level; and send a thirdreminding signal in a manner corresponding to the higher safety level.12. The terminal device of claim 8, wherein the physical status is anawake state, and the first reminding signal being a prompt signal. 13.The terminal device of claim 10, wherein either the second remindingsignal or a third reminding signal is a prompt signal.
 14. The terminaldevice of claim 13, wherein the awakening signal comprises either normalalarm ringing, soft ringing, or vibration, and the prompt signalcomprising either a first signal to indicate to the user to get-upnormally, a second signal to indicate a time to the user to takemedicine, a third signal to indicate to the user to get-up slowly, afourth signal to indicate to the user to lay still, or a fourth signalto indicate to the user to seek help.
 15. A non-transitory computerreadable medium including at least one computer program code storedtherein for user reminding on a device associated with a computingdevice wherein when executed on a processor, the non-transitory computerreadable medium causing the processor to be configured to: obtain aphysical status of a user and a first blood pressure value of the userwhen a time difference between a current time and a preset remindingtime is less than a first threshold; determine a first safety levelbased on the physical status of the user and the first blood pressurevalue of the user; and send a first reminding signal in a mannercorresponding to the first safety level.
 16. The non-transitory computerreadable medium of claim 15, wherein the physical status is a sleepingstate, and the first reminding signal being an awakening signal.
 17. Thenon-transitory computer readable medium of claim 16, wherein thenon-transitory computer readable medium further causes the processor tobe configured to: determine that the physical status of the user changesfrom the sleeping state to an awake state; obtain a second bloodpressure value of the user in the awake state; determine a second safetylevel based on a difference between the first blood pressure value andthe second blood pressure value; and send a second reminding signal in amanner corresponding to the second safety level.
 18. The non-transitorycomputer readable medium of claim 16, wherein the non-transitorycomputer readable medium further causes the processor to be configuredto: determine that the physical status of the user changes from thesleeping state to an awake state; obtain a second blood pressure valueof the user in the awake state; determine a second safety level based ona difference between the first blood pressure value and the second bloodpressure value; determine a third safety level based on the second bloodpressure value; select a higher safety level from the second safetylevel and the third safety level; and send a third reminding signal in amanner corresponding to the higher safety level.
 19. The non-transitorycomputer readable medium of claim 15, wherein the physical status is anawake state, and the first reminding signal being a prompt signal. 20.The non-transitory computer readable medium of claim 17, wherein eitherthe second reminding signal or a third reminding signal is a promptsignal.